Manufacture of cadmium mercury telluride
    2.
    发明授权
    Manufacture of cadmium mercury telluride 有权
    碲化汞制造

    公开(公告)号:US08021914B2

    公开(公告)日:2011-09-20

    申请号:US10594393

    申请日:2005-04-05

    IPC分类号: H01L21/00

    摘要: A method of manufacture of cadmium mercury telluride (CMT) is disclosed. The method involves growing one or more buffer layers on a substrate by molecular beam epitaxy (MBE). Subsequently at least one layer of cadmium mercury telluride, Hg1-xCdxTe where x is between 0 and 1 inclusive, is grown by metal organic vapour phase epitaxy (MOVPE). The use of MBE to grow buffer layers allows a range of substrates to be used for CMT growth. The MBE buffer layers provide the correct orientation for later MOVPE growth of CMT and also prevent chemical contamination of the CMT and attack of the substrate during MOVPE. The method also allows for device processing of the CMT layers to be performed with further MOVPE growth of crystalline CMT layers and/or passivation layers. The invention also relates to new devices formed by the method.

    摘要翻译: 公开了一种制造碲化汞镉(CMT)的方法。 该方法包括通过分子束外延(MBE)在衬底上生长一个或多个缓冲层。 随后,通过金属有机气相外延(MOVPE)生长至少一层碲化汞镉Hg(其中x在0和1之间)在0和1之间的Hg1-xCdxTe。 使用MBE来生长缓冲层可以使一系列底物用于CMT生长。 MBE缓冲层为CMT的后续MOVPE生长提供了正确的方向,并且还防止了在MOVPE期间CMT的化学污染和基材的侵蚀。 该方法还允许通过结晶CMT层和/或钝化层的进一步MOVPE生长来执行CMT层的器件处理。 本发明还涉及通过该方法形成的新装置。